NPS Reduces Stake to 5.00% from 6.11% (Simplified Report) — Hana Materials

Summary

The National Pension Service (NPS), Korea's largest institutional investor, filed a simplified large shareholding report disclosing a reduction of its stake in Hana Materials from 6.11% (1,209,334 shares) to 5.00% (989,244 shares), a net decrease of 220,090 shares. The transactions occurred on April 9 and April 15, 2026 via open-market trades, with the holding purpose stated as 'general investment' (non-control). NPS sold 232,159 shares on April 9 before adding back 12,069 shares on April 15, bringing the stake to exactly the 5.00% disclosure threshold. The reduction to precisely 5% is notable as it places NPS at the regulatory threshold, suggesting further selling may not require additional disclosure under the simplified reporting regime. Hana Materials is a KOSDAQ-listed semiconductor materials supplier, and NPS trimming exposure can be read as a mild negative signal for the stock.

Historical Impact

10 past Large Holding Report (5%+) · ≈ Schedule 13D/G events at Hana Materials

Median +5d

+2.36%

Range

-7.97% to +8.53%

Positive outcomes

6/10

Filed	P₀	P₊₅	+5d
Jun 23, 2026	₩60,900	₩63,300	+3.94%
Jun 1, 2026	₩60,400	₩63,800

Full Translation

Report on Large Shareholding of Stocks, etc. (Simplified) Version 6.0 Hana Materials 0000 0000 2026-04-09 Report on Large Shareholding of Stocks, etc. (Simplified form: For reports under Article 147 of the Financial Investment Services and Capital Markets Act, where the purpose is NOT to influence management control, and the reporter is a professional investor under the latter part of paragraph 1 of the same Article) To: Financial Services Commission Reporting obligation arising date: April 9, 2026 To: Korea Exchange Report preparation reference date: April 15, 2026 Reporter: National Pension Service === Summary Information === Professional investor classification eligible for reporting exception: Professional investor under Article 3-14 of the Regulations on Issuance and Public Disclosure of Securities Issuer name: Hana Materials Relationship to issuer: Shareholder Report type: Change Number and ratio of shares held: - Previous report: 1,209,334 shares (6.11%) - Current report: 989,244 shares (5.00%) Voting rights: N/A Reason for report: Simple additional acquisition/disposal Purpose of holding: General investment The reporter certifies that the holdings of the reporter and specially related parties as of the report reference date have been accurately prepared in accordance with relevant laws and regulations, and confirms there are no material misstatements or omissions. === Part 1: Overview of Report === 1. Information on the Issuer - Company name: Hana Materials - Company code: 166090 - Corporate classification: KOSDAQ-listed corporation - Total voting shares issued: 19,777,674 shares 2. Information on the Large Shareholder A. Reporter (1) Reporter Overview - Report type: Change - Joint filing: Yes - Reporter classification: Pension fund / Professional investor - Nationality: Republic of Korea - Name (Korean): 국민연금공단 - Name (English): National Pension Service - Address: 180 Giji-ro, Deokjin-gu, Jeonju-si, Jeollabuk-do Special Self-Governing Province (Manseong-dong) - Business registration number: 219-82-01593 - Business: National pension - Relationship to issuer: Shareholder - Contact: Securities Asset Management Department, Manager Kim Hyun-seo, Tel: 063-71******, Fax: 063-90****** (2) Details on Reporter - Legal nature: Public corporation - Total assets (AUM): 1,214,428,200,956,406 KRW - Total liabilities: 1,576,907,885,584 KRW - Total equity: 1,212,851,293,070,822 KRW - Capital: 0 - Representative: Kim Seong-ju - Decision-making body: Board of Directors B. Specially Related Parties (1) Overview - No. 1: National Pension Fund — Pension fund / Professional investor — Other relationship — Business reg. no. 219-82-01593 — Republic of Korea — 131 Ogong-ro, Deokjin-gu, Jeonju-si, Jeollabuk-do (Manseong-dong) — Shareholder (2) Details on Specially Related Party - Legal nature: Fund - Total assets (AUM): 1,214,428,200,956,406 KRW - Total liabilities: 1,576,907,885,584 KRW - Total equity: 1,212,851,293,070,822 KRW - Capital: 0 - Decision-making body: Fund Management Committee C. Collective Investment Business Operator: Not applicable 3. Number and Ratio of Shares Held Previous report (March 31, 2026): NPS held 1,209,334 shares (6.11%); total voting shares: 19,777,674 Current report (April 15, 2026): NPS holds 989,244 shares (5.00%); total voting shares: 19,777,674 Net change: -220,090 shares (-1.11%) 4. Reasons for Change - Method of change: On-market purchase/sale - Reason for change: Simple additional acquisition/disposal === Part 2: Large Shareholding Details === 1. Holdings by Type — Reporter and Specially Related Parties - Reporter (NPS): No direct holdings - Specially Related Party (National Pension Fund): 989,244 common shares (5.00%) - Total voting shares issued (I): 19,777,674 - Potential shares held: 0 - Holding ratio: 5.00% - Common share holding ratio: 5.00% 2. Proprietary vs. Customer Account Holdings (Financial Institutions Only): Not applicable === Part 3: Large Changes Since Previous Report === 1. Summary of Changes - Specially Related Party (National Pension Fund): -220,090 shares (-1.11%) 2. Detailed Change History (Unit: shares, KRW) - April 9, 2026: National Pension Fund — Voting common shares — Before: 1,209,334; Change: -232,159; After: 977,175 - April 15, 2026: National Pension Fund — Voting common shares — Before: 977,175; Change: +12,069; After: 989,244 Note: Pursuant to Article 154(4) and (5)2-3 of the Enforcement Decree of the Financial Investment Services and Capital Markets Act, the State, local governments, Bank of Korea, and qualifying professional investors (under Article 3-14 of the Securities Issuance and Public Disclosure Regulations) whose holding purpose is not to influence management control may aggregate change details by each reporting obligation date and may omit acquisition/disposal method and unit price. * For market trades: contract conclusion date ** For non-stock securities: exercise/conversion price === Part 4: Additional Reporting (Non-Simple Investment Purpose) === 1. Holdings [Translation truncated]